回転数

11:53 Oct 29, 2020
This question was closed without grading. Reason: Answer found elsewhere

Japanese to English translations [PRO]
Tech/Engineering - Mechanics / Mech Engineering
Japanese term or phrase: 回転数
Text: エンジン回転数/電気モーター回転数

My understanding: Engine rpm/Electric motor rpm

My Issue: 回転数 has different meanings such as "rpm", "number of revolutions of the engine", "Engine revolution speed", "engine speed". It will vary depending upon the usage in any sentence. So, in sentences like above, Do we use rpm or speed?
Harpreet Singh kapula
India
Local time: 07:30


Summary of answers provided
3rpm for engine and motor
Akihiko Takeda
Summary of reference entries provided
FYR
cinefil

  

Answers


3 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
rpm for engine and motor


Explanation:
If it's "engine speed", it would be misleading as vehicle speed. rpm (=revolution or rotation per minute) means more precise for engine function. For motor, it is seldom called motor speed but normally motor rpm.

Akihiko Takeda
United States
Local time: 22:00
Specializes in field
Native speaker of: Japanese
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Reference comments


1 hr
Reference: FYR

Reference information:
https://ejje.weblio.jp/content/回転数

cinefil
Japan
Works in field
Native speaker of: Native in JapaneseJapanese
PRO pts in category: 422
Note to reference poster
Asker: Thank you!

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